/*
 * Copyright (c) 2010, Christian Lerche
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * Author: Christian Lerche <christian.lerche@uni-rostock.de>
 *
 */

/* this is a dummy file because of some deficiencies in the contiki build system*/
#include "udpws-process.c"

/*----------------------------------Implementation of persistent Data-----------------*/
int read_persistent_data(uint32_t *instance_id){
    FILE *f;
	f=fopen(UDPWS_PERSISTENT_FILENAME,"r");
	if (f == NULL){
		*instance_id = 0;
		return -1;
	}
	if (fread(instance_id, 4, 1, f) != 4){
		fclose(f);
		return -1;
	}
	fclose(f);
	return 0;
}

int write_persistent_data(uint32_t instance_id){
    FILE *f;
	f=fopen(UDPWS_PERSISTENT_FILENAME,"w");
	if (f == NULL){
		return -1;
	}
	if (fwrite(&instance_id, 4, 1, f) != 4){
		fclose(f);
		return -1;
	}
	fclose(f);
	return 0;
}
